1
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Das M, Tsuchiya KD, Bohling SD, Davis B, Hwang S, Gardner RA, Chisholm KM. How Many Tests Does It Take to Diagnose a Triple-Hit B-Lymphoblastic Lymphoma? (Hint, It's A Lot). Pediatr Dev Pathol 2024; 27:193-197. [PMID: 38032739 DOI: 10.1177/10935266231212337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
B-lymphoblastic leukemia/lymphoma (B-ALL/LBL) is a precursor B-cell neoplasm that often harbors specific cytogenetic/molecular abnormalities with distinctive clinical, phenotypic, and prognostic characteristics. Subcategorization of B-ALL/LBL therefore requires extensive cytogenetic and/or molecular testing to determine the appropriate classification and therapeutic interventions for these patients. Herein, we present a case of a 17-year-old young woman diagnosed with B-LBL harboring not only an IGH::MYC rearrangement but also BCL2 and BCL6 rearrangements (so-called "triple-hit") and somatic biallelic TP53 inactivation. MYC rearrangements are relatively rare in B-ALL/LBL, and the identification of a "triple-hit" elicited an initial diagnostic dilemma. However, a multimodal approach allowed for the classification of this complex case and helped guide selection of an appropriate therapeutic regimen.
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Affiliation(s)
- Marie Das
- Department of Laboratory Medicine and Pathology, University of Washington Medical Center, Seattle, WA, USA
| | - Karen D Tsuchiya
- Department of Laboratory Medicine and Pathology, University of Washington Medical Center, Seattle, WA, USA
- Department of Laboratories, Seattle Children's Hospital, Seattle, WA, USA
- Now at Institute for Genomic Medicine, Nationwide Children's Hospital, Columbus, OH, USA
| | - Sandra D Bohling
- Department of Laboratory Medicine and Pathology, University of Washington Medical Center, Seattle, WA, USA
- Department of Laboratories, Seattle Children's Hospital, Seattle, WA, USA
| | - Billy Davis
- Department of Laboratories, Seattle Children's Hospital, Seattle, WA, USA
- Now at CellNetix Pathology Laboratories, Tukwila, WA, USA
| | - Samuel Hwang
- Department of Laboratories, Seattle Children's Hospital, Seattle, WA, USA
- Now at Department of Pathology, Orlando Health, Orlando, FL, USA
| | - Rebecca A Gardner
- Department of Pediatrics, University of Washington, Seattle, WA, USA
- Ben Towne Center of Childhood Cancer Research, Seattle Cancer Research Institute, Seattle, WA, USA
| | - Karen M Chisholm
- Department of Laboratory Medicine and Pathology, University of Washington Medical Center, Seattle, WA, USA
- Department of Laboratories, Seattle Children's Hospital, Seattle, WA, USA
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2
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Chisholm KM, Bohling SD. Childhood Myelodysplastic Syndrome. Clin Lab Med 2023; 43:639-655. [PMID: 37865508 DOI: 10.1016/j.cll.2023.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2023]
Abstract
Myelodysplastic syndrome (MDS) in children is rare, accounting for < 5% of all childhood hematologic malignancies. With the advent of next-generation sequencing, the etiology of many childhood MDS (cMDS) cases has been elucidated with the finding of predisposing germline mutations in one-quarter to one-third of cases; somatic mutations have also been identified, indicating that cMDS is different than adult MDS. Herein, cMDS classification schema, clinical presentation, laboratory values, bone marrow histology, differential diagnostic considerations, and the recent molecular findings of cMDS are described.
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Affiliation(s)
- Karen M Chisholm
- Hematopathology, Department of Laboratories, Seattle Children's Hospital, 4800 Sand Point Way Northeast, FB.4.510, Seattle, WA 98105, USA; Department of Laboratory Medicine and Pathology, University of Washington Medical Center, 4800 Sand Point Way Northeast, FB.4.510, Seattle, WA 98105, USA.
| | - Sandra D Bohling
- Hematopathology, Department of Laboratories, Seattle Children's Hospital, 4800 Sand Point Way Northeast, FB.4.510, Seattle, WA 98105, USA; Department of Laboratory Medicine and Pathology, University of Washington Medical Center, 4800 Sand Point Way Northeast, FB.4.510, Seattle, WA 98105, USA
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3
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Small C, Mukerjee S, Jangam D, Gollapudi S, Singh K, Jaye DL, Aung PP, Querfeld C, Yao K, Chisholm KM, Pullarkat S, Wang S, Gru A, Hussaini M, George TI, Ohgami RS. Profiling endogenous, environmental, and infectious disease mutational signatures in blastic plasmacytoid dendritic cell neoplasms. Int J Lab Hematol 2023; 45:726-734. [PMID: 37282364 DOI: 10.1111/ijlh.14108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 05/17/2023] [Indexed: 06/08/2023]
Abstract
BACKGROUND Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a rare hematopoietic disease derived from plasmacytoid dendritic lineage cells. The disease typically shows skin as well as frequent bone marrow and peripheral blood involvement. However, the pathogenesis of this disease is still not well understood. While somatic point mutations and genetic rearrangements have been described in BPDCN, the types and origins of these mutations and relationships to other cancer types is not well understood. MATERIALS AND METHODS To probe the origins of BPDCN, we analyzed the exome sequence data of 9 tumor-normal pair cases of BPDCN. We utilized SignatureAnalyzer, SigProfiler and a custom microbial analysis pipeline to understand the relevance of endogenous and environmental mutagenic processes. RESULTS Our results identified a significant tobacco exposure and aging genetic signature as well as signatures related to nucleotide excision repair deficiency, ultra violet (UV) exposure, and endogenous deamination in BPDCN. We also assessed the samples for microbial infectious disease organisms but did not find a link to a microbial etiology. CONCLUSION The identification of a tobacco exposure and aging genetic signature in patients with BPDCN suggests that environmental and endogenous genetic changes may be central to the oncogenesis of BPDCN.
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Affiliation(s)
- Corinn Small
- Department of Pathology, University of California, San Francisco, California, USA
- Department of Genetics, Stanford University, Stanford, California, USA
| | - Soham Mukerjee
- Department of Pathology, University of California, San Francisco, California, USA
| | - Diwash Jangam
- Department of Pathology, Stanford University, Stanford, California, USA
| | - Sumanth Gollapudi
- Department of Pathology, University of California, San Francisco, California, USA
| | - Kunwar Singh
- Department of Pathology, University of California, San Francisco, California, USA
| | - David L Jaye
- Department of Pathology and Laboratory Medicine, Emory University, Atlanta, Georgia, USA
| | - Phyu P Aung
- Department of Pathology and Dermatopathology, MD Anderson Cancer Center, Houston, Texas, USA
| | - Christiane Querfeld
- Department of Pathology, City of Hope and Beckman Research Institute, Duarte, California, USA
| | - Keluo Yao
- Department of Pathology, City of Hope and Beckman Research Institute, Duarte, California, USA
- Department of Pathology, Cedar-Sinai, Los Angeles, California, USA
| | - Karen M Chisholm
- Department of Laboratories, Seattle Children's Hospital, Seattle, Washington, USA
| | - Sheeja Pullarkat
- Department of Pathology and Laboratory Medicine, University of California Los Angeles, Los Angeles, California, USA
| | - Sa Wang
- Department of Hematopathology, MD Anderson Cancer Center, Houston, Texas, USA
| | - Alejandro Gru
- Department of Pathology, University of Virginia, Charlottesville, Virginia, USA
| | | | - Tracy I George
- Department of Pathology, University of Utah, Salt Lake City, Utah, USA
| | - Robert S Ohgami
- Department of Pathology, University of California, San Francisco, California, USA
- Department of Pathology, University of Utah, Salt Lake City, Utah, USA
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4
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Lee BM, Summers C, Chisholm KM, Bohling SD, Leger KJ, Gardner R, Annesley C, Lamble AJ. Plasticity of lineage switch in B-ALL allows for successful rechallenge with CD19-directed immunotherapy. Blood Adv 2023; 7:2825-2830. [PMID: 36763522 PMCID: PMC10279539 DOI: 10.1182/bloodadvances.2022009480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/20/2023] [Accepted: 02/04/2023] [Indexed: 02/11/2023] Open
Affiliation(s)
- Brittany M. Lee
- Seattle Children’s Research Institute, Seattle, WA
- Department of Pediatrics, University of Washington School of Medicine, University of Washington, Seattle, WA
| | - Corinne Summers
- Department of Pediatrics, University of Washington School of Medicine, University of Washington, Seattle, WA
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA
| | - Karen M. Chisholm
- Department of Laboratories, Seattle Children’s Hospital, Seattle, WA
- Department of Laboratory Medicine and Pathology, University of Washington School of Medicine, University of Washington, Seattle, WA
| | - Sandra D. Bohling
- Department of Laboratories, Seattle Children’s Hospital, Seattle, WA
- Department of Laboratory Medicine and Pathology, University of Washington School of Medicine, University of Washington, Seattle, WA
| | - Kasey J. Leger
- Seattle Children’s Research Institute, Seattle, WA
- Department of Pediatrics, University of Washington School of Medicine, University of Washington, Seattle, WA
| | - Rebecca Gardner
- Seattle Children’s Research Institute, Seattle, WA
- Department of Pediatrics, University of Washington School of Medicine, University of Washington, Seattle, WA
| | - Colleen Annesley
- Seattle Children’s Research Institute, Seattle, WA
- Department of Pediatrics, University of Washington School of Medicine, University of Washington, Seattle, WA
| | - Adam J. Lamble
- Seattle Children’s Research Institute, Seattle, WA
- Department of Pediatrics, University of Washington School of Medicine, University of Washington, Seattle, WA
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5
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Chisholm KM, Smith J, Heerema-McKenney AE, Choi JK, Ries RE, Hirsch BA, Raimondi SC, Wang YC, Dang A, Alonzo TA, Sung L, Aplenc R, Gamis AS, Meshinchi S, Kahwash SB. Pathologic, cytogenetic, and molecular features of acute myeloid leukemia with megakaryocytic differentiation: A report from the Children's Oncology Group. Pediatr Blood Cancer 2023; 70:e30251. [PMID: 36789545 PMCID: PMC10038909 DOI: 10.1002/pbc.30251] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 01/18/2023] [Accepted: 01/26/2023] [Indexed: 02/16/2023]
Abstract
BACKGROUND Acute myeloid leukemia (AML) with megakaryocytic differentiation (AMkL) is a rare subtype of AML more common in children. Recent literature has identified multiple fusions associated with this type of leukemia. METHODS Morphology, cytogenetics, and genomic sequencing were assessed in patients from Children's Oncology Group trials AAML0531 and AAML1031 with central-pathology review confirmed non-Down syndrome AMkL. The 5-year event-free survival (EFS), overall survival (OS), and RR were evaluated in these AMkL subcategories. RESULTS A total of 107 cases of AMkL (5.5%) were included. Distinct fusions were identified in the majority: RBM15::MRTFA (20%), CBFA2T3::GLIS2 (16%), NUP98 (10%), KMT2A (7%), TEC::MLLT10 (2%), MECOM (1%), and FUS::ERG (1%); many of the remaining cases were classified as AMkL with (other) myelodysplasia-related changes (MRC). Very few cases had AML-associated somatic mutations. Cases with CBFA2T3::GLIS2 were enriched in trisomy 3 (p = .015) and the RAM phenotype, with associated high CD56 expression (p < .001). Cases with NUP98 fusions were enriched in trisomy 6 (p < .001), monosomy 13/del(13q) (p < .001), trisomy 21 (p = .026), and/or complex karyotypes (p = .026). While different 5-year EFS and OS were observed in AMkL in each trial, in general, those with CBFA2T3::GLIS2 or KMT2A rearrangements had worse outcomes compared to other AMkL, while those with RBM15::MRTFA or classified as AMkl-MRC fared better. AMkL with NUP98 fusions also had poor outcomes in the AAML1031 trial. CONCLUSION Given the differences in outcomes, AMkL classification by fusions, cytogenetics, and morphology may be warranted to help in risk stratification and therapeutic options.
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Affiliation(s)
- Karen M. Chisholm
- Department of Laboratories, Seattle Children’s Hospital, Seattle, WA
- Department of Laboratory Medicine and Pathology, University of Washington Medical Center, Seattle, WA
| | - Jenny Smith
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
| | | | - John K. Choi
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL
| | - Rhonda E. Ries
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Betsy A. Hirsch
- Division of Laboratory Medicine, University of Minnesota Medical Center, Fairview, Minneapolis, MN
| | - Susana C. Raimondi
- Department of Pathology, St. Jude Children’s Research Hospital, Memphis, TN
| | | | | | - Todd A. Alonzo
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA
| | - Lillian Sung
- Department of Pediatrics, Division of Hematology/Oncology, The Hospital for Sick Children, Toronto, ON, Canada
| | | | - Alan S. Gamis
- Children’s Mercy Hospitals & Clinics, Kansas City, MO
| | - Soheil Meshinchi
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Samir B. Kahwash
- Department of Pathology and Laboratory Medicine, Nationwide Children’s Hospital, Columbus, OH
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6
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Afify ZAM, Taj MM, Orjuela-Grimm M, Srivatsa K, Miller TP, Edington HJ, Dalal M, Robles J, Ford JB, Ehrhardt MJ, Ureda TJ, Rubinstein JD, McCormack S, Rivers JM, Chisholm KM, Kavanaugh MK, Bukowinski AJ, Friehling ED, Ford MC, Reddy SN, Marks LJ, Smith CM, Mason CC. Multicenter study of pediatric Epstein-Barr virus-negative monomorphic post solid organ transplant lymphoproliferative disorders. Cancer 2023; 129:780-789. [PMID: 36571557 DOI: 10.1002/cncr.34600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/21/2022] [Accepted: 11/07/2022] [Indexed: 12/27/2022]
Abstract
BACKGROUND Pediatric Epstein-Barr virus-negative monomorphic post solid organ transplant lymphoproliferative disorder [EBV(-)M-PTLD] comprises approximately 10% of M-PTLD. No large multi-institutional pediatric-specific reports on treatment and outcome are available. METHODS A multi-institutional retrospective review of solid organ recipients diagnosed with EBV(-)M-PTLD aged ≤21 years between 2001 and 2020 in 12 centers in the United States and United Kingdom was performed, including demographics, staging, treatment, and outcomes data. RESULTS Thirty-six patients were identified with EBV(-)M-PTLD. Twenty-three (63.9%) were male. Median age (range) at transplantation, diagnosis of EBV(-)M-PTLD, and interval from transplant to PTLD were 2.2 years (0.1-17), 14 years (3.0-20), and 8.5 years (0.6-18.3), respectively. Kidney (n = 17 [47.2%]) and heart (n = 13 [36.1%]) were the most commonly transplanted organs. Most were Murphy stage III (n = 25 [69.4%]). Lactate dehydrogenase was elevated in 22/34 (64.7%) and ≥2 times upper limit of normal in 11/34 (32.4%). Pathological diagnoses included diffuse large B-cell lymphoma (n = 31 [86.1%]) and B-non-Hodgkin lymphoma (B-NHL) not otherwise specified (NOS) (n = 5 [13.9%]). Of nine different regimens used, the most common were: pediatric mature B-NHL-specific regimen (n = 13 [36.1%]) and low-dose cyclophosphamide, prednisone, and rituximab (n = 9 [25%]). Median follow-up from diagnosis was 3.0 years (0.3-11.0 years). Three-year event-free survival (EFS) and overall survival (OS) were 64.8% and 79.9%, respectively. Of the seven deaths, six were from progressive disease. CONCLUSIONS EFS and OS were comparable to pediatric EBV(+) PTLD, but inferior to mature B-NHL in immunocompetent pediatric patients. The wide range of therapeutic regimens used directs our work toward developing an active multi-institutional registry to design prospective studies. PLAIN LANGUAGE SUMMARY Pediatric Epstein-Barr virus-negative monomorphic post solid organ transplant lymphoproliferative disorders (EBV(-)M-PTLD) have comparable outcomes to EBV(+) PTLD, but are inferior to diffuse large B-cell lymphoma in immunocompetent pediatric patients. The variety of treatment regimens used highlights the need to develop a pediatric PTLD registry to prospectively evaluate outcomes. The impact of treatment regimen on relapse risk could not be assessed because of small numbers. In the intensive pediatric B-non-Hodgkin lymphoma chemoimmunotherapy group, 11 of 13 patients remain alive in complete remission after 0.6 to 11 years.
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Affiliation(s)
- Zeinab A M Afify
- Primary Children's Hospital, University of Utah, Salt Lake City, Utah, USA
| | - Mary M Taj
- The Royal Marsden Hospital, Sutton, London, UK
| | | | | | - Tamara P Miller
- Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia, USA
| | - Holly J Edington
- Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia, USA.,Novant Health Presbyterian Medical Center, Charlotte, North Carolina, USA
| | - Mansi Dalal
- University of Florida Health Science Center, Gainesville, Florida, USA
| | - Joanna Robles
- Duke University School of Medicine, Durham, North Carolina, USA
| | - James B Ford
- University of Nebraska Medical Center, Omaha, Nebraska, USA
| | | | - Tonya J Ureda
- St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Jeremy D Rubinstein
- Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,University of Cincinnati, College of Medicine, Cincinnati, Ohio, USA
| | - Sarah McCormack
- Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | | | | | - Madison K Kavanaugh
- Department of Pediatrics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Andrew J Bukowinski
- Department of Pediatrics, University of Pittsburgh, School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Erika D Friehling
- Department of Pediatrics, University of Pittsburgh, School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Maegan C Ford
- Columbia University Medical Center, New York, New York, USA
| | - Sonika N Reddy
- Columbia University Medical Center, New York, New York, USA
| | - Lianna J Marks
- Stanford University School of Medicine, Palo Alto, California, USA
| | | | - Clinton C Mason
- Department of Pediatrics, University of Utah, Salt Lake City, Utah, USA
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7
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Bertrums EJM, Smith JL, Harmon L, Ries RE, Wang YCJ, Alonzo TA, Menssen AJ, Chisholm KM, Leonti AR, Tarlock K, Ostronoff F, Pogosova-Agadjanyan EL, Kaspers GJL, Hasle H, Dworzak M, Walter C, Muhlegger N, Morerio C, Pardo L, Hirsch B, Raimondi S, Cooper TM, Aplenc R, Gamis AS, Kolb EA, Farrar JE, Stirewalt D, Ma X, Shaw TI, Furlan SN, Brodersen LE, Loken MR, Van den Heuvel-Eibrink MM, Zwaan CM, Triche TJ, Goemans BF, Meshinchi S. Comprehensive molecular and clinical characterization of NUP98 fusions in pediatric acute myeloid leukemia. Haematologica 2023. [PMID: 36815378 PMCID: PMC10388277 DOI: 10.3324/haematol.2022.281653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Indexed: 02/24/2023] Open
Abstract
NUP98 fusions c omprise a family o f rare r ecurrent a lterations i n A ML, associated w ith adverse outcomes. To define the underlying biology and clinical implications of this family of fusions, we performed comprehensive transcriptome, epigenome, and immunophenotypic profiling of 2,235 children and young adults with AML and identified 160 NUP98 rearrangements (7.2%), including 108 NUP98-NSD1 (4.8%), 32 NUP98-KDM5A (1.4%) and 20 NUP98-X cases (0.9%) with 13 different fusion partners. Fusion partners defined disease characteristics and biology; patients with NUP98-NSD1 or NUP98-KDM5A had distinct immunophenotypic, transcriptomic, and epigenomic profiles. Unlike the two most prevalent NUP98 fusions, NUP98-X variants are typically not cryptic. Furthermore, NUP98-X cases are associated with WT1 mutations, and have epigenomic profiles that resemble either NUP98- NSD1 or NUP98-KDM5A. Cooperating FLT3-ITD and WT1 mutations define NUP98-NSD1, and chromosome 13 aberrations are highly enriched in NUP98-KDM5A. Importantly, we demonstrate that NUP98 fusions portend dismal overall survival, with the noteworthy exception of patients bearing abnormal chr13.
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Affiliation(s)
- Eline J M Bertrums
- Princess Maxima Center for Pediatric Oncology, Utrecht, the Netherlands; Department of Pediatric Oncology/Hematology, Erasmus Medical Center - Sophia Children's Hospital, Rotterdam, the Netherlands; Oncode Institute, Utrecht.
| | - Jenny L Smith
- Fred Hutchinson Cancer Research Center, Clinical Research Division, Seattle, WA
| | - Lauren Harmon
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI
| | - Rhonda E Ries
- Fred Hutchinson Cancer Research Center, Clinical Research Division, Seattle, WA
| | - Yi-Cheng J Wang
- Department of Translational Genomics, University of Southern California, Los Angeles, CA, USA; Children's Oncology Group, Monrovia, CA
| | - Todd A Alonzo
- Department of Translational Genomics, University of Southern California, Los Angeles, CA, USA; Children's Oncology Group, Monrovia, CA
| | | | - Karen M Chisholm
- Department of Laboratories, Seattle Children's Hospital, Seattle, WA
| | - Amanda R Leonti
- Fred Hutchinson Cancer Research Center, Clinical Research Division, Seattle, WA
| | - Katherine Tarlock
- Fred Hutchinson Cancer Research Center, Clinical Research Division, Seattle, WA, USA; Division of Hematology and Oncology, Seattle Children's Hospital, Seattle, WA
| | - Fabiana Ostronoff
- Intermountain Blood and Marrow Transplant and Acute Leukemia Program, Intermountain Healthcare, Salt Lake City, UT
| | | | - Gertjan J L Kaspers
- Princess Maxima Center for Pediatric Oncology, Utrecht, the Netherlands; Emma Children's Hospital, Amsterdam UMC, Vrije Universiteit Amsterdam, Pediatric Oncology, The Netherlands; Dutch Childhood Oncology Group
| | - Henrik Hasle
- Department of Pediatrics, Aarhus University Hospital, Aarhus, Denmark
| | - Michael Dworzak
- Children's Cancer Research Institute, Medical University of Vienna, Vienna, Austria; St. Anna Kinderspital, Department of Pediatrics, Medical University of Vienna, Vienna
| | - Christiane Walter
- Department of Pediatric Hematology and Oncology, University Hospital Essen, Essen
| | - Nora Muhlegger
- Children's Cancer Research Institute, Medical University of Vienna, Vienna
| | - Cristina Morerio
- Laboratory of Human Genetics, IRCCS Istituto Giannina Gaslini, Genoa
| | | | - Betsy Hirsch
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN
| | - Susana Raimondi
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN
| | - Todd M Cooper
- Division of Hematology and Oncology, Seattle Children's Hospital, Seattle, WA
| | - Richard Aplenc
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, PA
| | - Alan S Gamis
- Division of Hematology/Oncology, Children's Mercy Kansas City, Kansas City, MO
| | - Edward A Kolb
- Nemours Alfred I. duPont Hospital for Children, Wilmington, DE
| | - Jason E Farrar
- Arkansas Children's Research Institute and Department of Pediatrics, Hematology/Oncology Section, Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR
| | - Derek Stirewalt
- Fred Hutchinson Cancer Research Center, Clinical Research Division, Seattle, WA
| | - Xiaotu Ma
- Computational Biology Department, St. Jude Children's Research Hospital, Memphis, TN
| | - Tim I Shaw
- Computational Biology Department, St. Jude Children's Research Hospital, Memphis, TN
| | - Scott N Furlan
- Fred Hutchinson Cancer Research Center, Clinical Research Division, Seattle, WA
| | | | | | | | - C Michel Zwaan
- Princess Maxima Center for Pediatric Oncology, Utrecht, the Netherlands; Department of Pediatric Oncology/Hematology, Erasmus Medical Center - Sophia Children's Hospital, Rotterdam, the Netherlands; Dutch Childhood Oncology Group
| | - Timothy J Triche
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI, USA; Department of Translational Genomics, University of Southern California, Los Angeles, CA, USA; Department of Pediatrics, Michigan State University College of Human Medicine, Grand Rapids, MI
| | | | - Soheil Meshinchi
- Fred Hutchinson Cancer Research Center, Clinical Research Division, Seattle, WA, USA; Children's Oncology Group, Monrovia, CA, USA; Division of Hematology and Oncology, Seattle Children's Hospital, Seattle, WA.
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8
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Afify Z, Orjuela-Grimm M, Smith CM, Dalal M, Ford JB, Pillai P, Robles JM, Reddy S, McCormack S, Ehrhardt MJ, Ureda T, Alperstein W, Edington H, Miller TP, Rubinstein JD, Kavanaugh M, Bukowinski AJ, Friehling E, Rivers JM, Chisholm KM, Marks LJ, Mason CC. Burkitt lymphoma after solid-organ transplant: Treatment and outcomes in the paediatric PTLD collaborative. Br J Haematol 2023; 200:297-305. [PMID: 36454546 DOI: 10.1111/bjh.18498] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 09/08/2022] [Accepted: 09/21/2022] [Indexed: 12/05/2022]
Abstract
Burkitt lymphoma arising in paediatric post-solid-organ transplantation-Burkitt lymphoma (PSOT-BL) is a clinically aggressive malignancy and a rare form of post-transplant lymphoproliferative disorder (PTLD). We evaluated 35 patients diagnosed with PSOT-BL at 14 paediatric medical centres in the United States. Median age at organ transplantation was 2.0 years (range: 0.1-14) and age at PSOT-BL diagnosis was 8.0 years (range: 1-17). All but one patient had late onset of PSOT-BL (≥2 years post-transplant), with a median interval from transplant to PSOT-BL diagnosis of 4.0 years (range: 0.4-12). Heart (n = 18 [51.4%]) and liver (n = 13 [37.1%]) were the most frequently transplanted organs. No patients had loss of graft or treatment-related mortality. A variety of treatment regimens were used, led by intensive Burkitt lymphoma-specific French-American-British/Lymphomes Malins B (FAB/LMB), n = 13 (37.1%), and a low-intensity regimen consisting of cyclophosphamide, prednisone and rituximab (CPR) n = 12 (34.3%). Median follow-up was 6.7 years (range: 0.5-17). Three-year event-free and overall survival were 66.2% and 88.0%, respectively. Outcomes of PSOT-BL patients receiving BL-specific intensive regimens are comparable to reported BL outcomes in immunocompetent children. Multi-institutional collaboration is feasible and provides the basis of prospective data collection to determine the optimal treatment regimen for PSOT-BL.
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Affiliation(s)
- Zeinab Afify
- Pediatric Hematology Oncology, Primary Children's Med. Ctr, Salt Lake City, Utah, USA
| | - Manuela Orjuela-Grimm
- Division of Pediatric Hematology Oncology and Stem Cell Transplantation, and Department of Epidemiology, Columbia University Medical Center, New York, New York City, USA
| | | | - Mansi Dalal
- University of Florida, Gainesville, Florida, USA
| | - James B Ford
- University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Pallavi Pillai
- Mount Sinai Kravis Children's Hospital, New York, New York City, USA
| | - Joanna M Robles
- Department of Pediatrics, Division of Hematology/Oncology, Duke University School of Medicine, Durham, North Carolina, USA
| | - Sonika Reddy
- Division of Pediatric Hematology Oncology and Stem Cell Transplantation, and Department of Epidemiology, Columbia University Medical Center, New York, New York City, USA
| | - Sarah McCormack
- Cancer and Blood Diseases Institute, Cincinnati Children's Hospital Medical center, Cincinnati, Ohio, USA.,Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Matthew J Ehrhardt
- Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Tonya Ureda
- Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Warren Alperstein
- Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, Florida, USA
| | - Holly Edington
- Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Tamara P Miller
- Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Jeremy D Rubinstein
- Cancer and Blood Diseases Institute, Cincinnati Children's Hospital Medical center, Cincinnati, Ohio, USA.,Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Madison Kavanaugh
- UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Andrew J Bukowinski
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Erika Friehling
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Julie M Rivers
- Department of Pediatrics, Seattle Children's Hospital, Seattle, Washington, USA
| | - Karen M Chisholm
- Department of Laboratories, Seattle Children's Hospital, Seattle, Washington, USA
| | - Lianna J Marks
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Stanford University School of Medicine, Palo Alto, California, USA
| | - Clinton C Mason
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, University of Utah, Salt Lake City, Utah, USA
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9
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Abstract
BACKGROUND Kikuchi-Fujimoto disease (KFD) is a rare, benign, and self-limited disease that presents with cervical lymphadenopathy and systemic symptoms. Histologic evaluation is often necessary to differentiate KFD from other entities. METHODS Electronic medical records and diagnostic material were reviewed for 14 children diagnosed with KFD and 6 children diagnosed with infectious mononucleosis (IM) from 2013-2021. Four cases of KFD were further characterized using targeted DNA-based next-generation sequencing. RESULTS Systemic symptoms were present in 86% (n = 12/14) of KFD patients, the most common being fever. Laboratory values worrisome for malignancy included cytopenia(s) (n = 9/12), elevated ESR and/or CRP (n = 9/12), elevated ferritin (n = 7/7), and elevated LDH (n = 7/10). Histologically, lymph nodes showed characteristic necrotic foci without neutrophils surrounded by MPO+ "crescentic" histiocytes. Immunoblasts and CD123+ plasmacytoid dendritic cells (pDCs) were also increased surrounding the necrosis. IM lymph nodes showed similar features when necrosis was present but increases in pDCs were patchy and rare neutrophils were seen in the necrotic foci. Molecular analysis of 4 KFD cases did not identify pathogenic variants. CONCLUSION While the signs/symptoms of KFD are worrisome, there are pathologic features that help differentiate it from potential mimics. We did not identify characteristic molecular features to aid in the work-up of these cases.
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Affiliation(s)
- Karen M Chisholm
- Department of Laboratories, 7274Seattle Children's Hospital, Seattle, WA, USA.,Department of Laboratory Medicine and Pathology, 7284University of Washington, Seattle, WA, USA
| | - Sandra D Bohling
- Department of Laboratories, 7274Seattle Children's Hospital, Seattle, WA, USA.,Department of Laboratory Medicine and Pathology, 7284University of Washington, Seattle, WA, USA
| | - Karen D Tsuchiya
- Department of Laboratory Medicine and Pathology, 7284University of Washington, Seattle, WA, USA
| | - Vera A Paulson
- Department of Laboratory Medicine and Pathology, 7284University of Washington, Seattle, WA, USA
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10
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Afify ZA, Taj M, Srivatsa K, Miller TP, Edington H, Dalal M, Robles J, Ford J, Ehrhardt MJ, Ureda T, Rubinstein J, McCormack S, Rivers JM, Chisholm KM, Kavanaugh M, Bukowinski AJ, Friehling E, Marks L, Smith CM, Mason C. Pediatric EBV-negative monomorphic post–solid organ transplant lymphoproliferative disorders [EBV(-)M-PTLD]: Characteristics, treatment, and outcome from 11 pediatric academic centers. J Clin Oncol 2022. [DOI: 10.1200/jco.2022.40.16_suppl.10012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
10012 Background: Pediatric EBV(-)M-PTLD comprises < 15% of M-PTLD. Two-year-overall survival of pediatric EBV(+) PTLD is 83%. No large multi-institution pediatric-specific reports are available for EBV(-)M-PTLD. Methods: Retrospective study of characteristics, treatment, and outcome of pediatric solid organ recipients diagnosed with EBV(-)M-PTLD at age ≤21 years (y) in 11 pediatric transplant centers in US and UK. Results: Thirty-three patients transplanted with solid organs between 1991-2017 developed EBV(-)M-PTLD. Twenty-two (66%) were male. Median age (range) at organ transplantation was 2.6y(0.1-17), diagnosis of EBV(-)M-PTLD 14y(3-20), interval from transplant to PTLD 8.3y (2.3-18). Transplanted organs were heart (n = 10), kidney (n = 17), liver (n = 4), small bowel (n = 1), liver and small bowel (n = 1). Immunosuppressive therapy at the time of diagnosis of PTLD was available on 31 patients. All were receiving a calcineurin inhibitor except one who was on sirolimus alone. Tacrolimus was given in 27 patients, alone (n = 3), or in various combination with mycophenolate (n = 8), azathioprine (n = 9), prednisone (n = 8), or everolimus (n = 1). Four of these receiving tacrolimus received 3 immunosuppressive drug combinations. Cyclosporine was given in 3 patients, with mycophenolate (n = 1), prednisone (n = 1), or both (n = 2). Murphy stages were I (n = 1), II (n = 7), III (n = 22), and IV (n = 3). Lactate dehydrogenase was elevated in 19/31 (61%) and > 2X upper limit of normal in 10/31 (32%) tested. Pathological diagnoses were diffuse large B-cell lymphoma (n = 30) and B-NHL NOS (n = 3). Treatment included: rituximab alone (n = 1), low-dose cyclophosphamide, prednisone, and rituximab (CPR; n = 9), pediatric mature B-NHL-specific regimen [FAB/LMB with (n = 12) or without (n = 1) rituximab], EPOCH-R (n = 2), R-CHOP (n = 3), modified R-CHOP (n = 2), COP (n = 1), and R-COP (n = 2). At a median 2.9y (0.3-11y) from diagnosis, 26/33 (79%) were alive and in complete remission (CR). Three experienced relapses at 1, 3, and 6.5y after CPR, rituximab alone, and B-NHL therapy, respectively. All achieved a sustained second CR with additional B-NHL therapy. Of the 7 deaths: 6 were from progressive disease despite escalation to intensive B-NHL therapy following initial COP (n = 1), R-COP (n = 1), CPR (n = 2), and B-NHL therapy (n = 2), and one cardiac transplant recipient from presumed cardiotoxicity. There was one graft rejection that was successfully treated. Conclusions: This collaboration represents the first multi-institution series of pediatric EBV(-)M-PTLD. Overall survival was comparable to that reported for pediatric EBV(+) PTLD, but inferior to DLBCL in immunocompetent children. These preliminary data reflect a wide range of therapeutic regimens used over 20 years and strongly support an organized collaborative effort to collect data prospectively.
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Affiliation(s)
| | - Mary Taj
- The Royal Marsden Hospital, Sutton, London, United Kingdom
| | | | - Tamara P. Miller
- Emory University School of Medicine; Children's Healthcare of Atlanta, Atlanta, GA
| | - Holly Edington
- Emory University School of Medicine; Children's Healthcare of Atlanta, Atlanta, GA
| | - Mansi Dalal
- University of Florida Health Science Center, Gainesville, FL
| | | | - James Ford
- University of Nebraska Medical Center, Omaha, NE
| | | | - Tonya. Ureda
- St. Jude Children's Research Hospital, Memphis, TN
| | | | - Sarah McCormack
- Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
| | | | | | - Madison. Kavanaugh
- Department of Pediatrics, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA
| | - Andrew J. Bukowinski
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Erika Friehling
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA
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11
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Butzmann A, Sridhar K, Jangam D, Song H, Singh A, Kumar J, Chisholm KM, Pinsky B, Huang F, Ohgami RS. Mutations in JAK/STAT and NOTCH1 Genes Are Enriched in Post-Transplant Lymphoproliferative Disorders. Front Oncol 2022; 11:790481. [PMID: 35111674 PMCID: PMC8801788 DOI: 10.3389/fonc.2021.790481] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 12/13/2021] [Indexed: 12/22/2022] Open
Abstract
Post-transplant lymphoproliferative disorders (PTLD) are diseases occurring in immunocompromised patients after hematopoietic stem cell transplantation (HCT) or solid organ transplantation (SOT). Although PTLD occurs rarely, it may be associated with poor outcomes. In most cases, PTLD is driven by Epstein-Barr virus (EBV) infection. Few studies have investigated the mutational landscape and gene expression profile of PTLD. In our study, we performed targeted deep sequencing and RNA-sequencing (RNA-Seq) on 16 cases of florid follicular hyperplasia (FFH) type PTLD and 15 cases of other PTLD types that include: ten monomorphic (M-PTLD), three polymorphic (P-PTLD), and two classic Hodgkin lymphoma type PTLDs (CHL-PTLD). Our study identified recurrent mutations in JAK3 in five of 15 PTLD cases and one of 16 FFH-PTLD cases, as well as 16 other genes that were mutated in M-PTLD, P-PTLD, CHL-PTLD and FFH-PTLD. Digital image analysis demonstrated significant differences in single cell area, major axis, and diameter when comparing cases of M-PTLD and P-PTLD to FFH-PTLD. No morphometric relationship was identified with regards to a specific genetic mutation. Our findings suggest that immune regulatory pathways play an essential role in PTLD, with the JAK/STAT pathway affected in many PTLDs.
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Affiliation(s)
- Alexandra Butzmann
- Agilent Technologies, Santa Clara, CA, United States
- Department of Pathology, University of California, San Francisco, San Francisco, CA, United States
- *Correspondence: Alexandra Butzmann,
| | - Kaushik Sridhar
- Department of Pathology, University of California, San Francisco, San Francisco, CA, United States
| | - Diwash Jangam
- Department of Pathology, Stanford University, Stanford, CA, United States
| | - Hanbing Song
- Department of Pathology, University of California, San Francisco, San Francisco, CA, United States
| | - Amol Singh
- Department of Pathology, Stanford University, Stanford, CA, United States
| | - Jyoti Kumar
- Department of Pathology, Stanford University, Stanford, CA, United States
| | - Karen M. Chisholm
- Department of Laboratories, Seattle Children’s Hospital, Seattle, WA, United States
| | - Benjamin Pinsky
- Department of Pathology, Stanford University, Stanford, CA, United States
| | - Franklin Huang
- Department of Pathology, University of California, San Francisco, San Francisco, CA, United States
| | - Robert S. Ohgami
- Department of Pathology, University of California, San Francisco, San Francisco, CA, United States
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12
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Scoville NM, Feng S, Taylor MR, Herlihy E, Wilkes JJ, Chisholm KM, Tarczy-Hornoch K. Bilateral Pseudo-hypopyon as Presenting Symptom of Acute Monocytic Leukemia in an 8-Month-Old Infant. J Pediatr Ophthalmol Strabismus 2021; 58:e30-e33. [PMID: 34592122 DOI: 10.3928/01913913-20210708-05] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
A previously healthy 8-month-old female infant presenting with lethargy and bilateral eye redness and cloudiness had bilateral hypopyon uveitis, which persisted despite topical steroids. Cytology of the anterior chamber and cerebrospinal fluid and flow cytometry of cerebrospinal fluid revealed malignant cells consistent with acute monocytic leukemia. Bone marrow aspirates and biopsies showed no evidence of disease. She was treated with systemic and intrathecal chemotherapy, with subsequent remission and resolution of pseudo-hypopyon. Anterior chamber involvement is a rare presentation of acute myeloid leukemia and may indicate concurrent central nervous system involvement. This has important therapeutic implications, because additional treatment modalities such as intrathecal chemotherapy, local chemotherapy, and ocular radiation may be required to overcome the "pharmacologic sanctuary" created by the blood-ocular barrier. [J Pediatr Ophthalmol Strabismus. 2021;58(5):e30-e33.].
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13
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Du J, Chisholm KM, Tsuchiya K, Leger K, Lee BM, Rutledge JC, Paschal CR, Summers C, Xu M. Lineage Switch in an Infant B-Lymphoblastic Leukemia With t(1;11)(p32;q23); KMT2A/EPS15, Following Blinatumomab Therapy. Pediatr Dev Pathol 2021; 24:378-382. [PMID: 33749383 DOI: 10.1177/10935266211001308] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
We report a 6 month-old infant girl with t(1;11)(p32;q23), KMT2A/EPS15-rearranged B-acute lymphoblastic leukemia (B-ALL) that was refractory to traditional ALL-directed chemotherapy. Following administration of blinatumomab, she experienced lineage switch from B-ALL to acute myeloid leukemia (AML). Myeloid-directed chemotherapy resulted in clearance of AML by flow cytometry, though a residual CD19+ B-ALL population persisted (0.14%). Following bridging blinatumomab, the patient achieved B-ALL and AML remission, as measured by flow cytometry. The patient subsequently underwent allogeneic hematopoietic stem cell transplant. Unfortunately, she relapsed with CD19+ B-ALL one-month post-transplantation. Next generation sequencing study of IGH/IGL using ClonoSEQ® analysis detected 3 dominant sequences all present in her original B-ALL, lineage switched AML, and post-transplant relapsed B-ALL, though the latter showed an additional 4 sequences, three of which were present at low abundance in the original diagnostic sample. The presence of the same clones throughout her disease course suggests cellular reprogramming and differentiation following chemotherapy and immunotherapy. This is the first reported case of lineage switch of B-ALL with t(1;11) and also the first report of a lineage switch case that used ClonoSEQ® to define the clonality of the original B-ALL, lineage switched AML, and relapsed B-ALL.
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Affiliation(s)
- Jing Du
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington
| | - Karen M Chisholm
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington.,Department of Laboratories, Seattle Children's Hospital, Seattle, Washington
| | - Karen Tsuchiya
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington.,Department of Laboratories, Seattle Children's Hospital, Seattle, Washington
| | - Kasey Leger
- Department of Pediatrics, Seattle Children's Hospital, Seattle, Washington.,Department of Pediatrics, University of Washington, Seattle, Washington
| | - Brittany M Lee
- Department of Pediatrics, Seattle Children's Hospital, Seattle, Washington.,Department of Pediatrics, University of Washington, Seattle, Washington
| | - Joe C Rutledge
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington.,Department of Laboratories, Seattle Children's Hospital, Seattle, Washington
| | - Cate R Paschal
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington.,Department of Laboratories, Seattle Children's Hospital, Seattle, Washington
| | - Corinne Summers
- Department of Pediatrics, Seattle Children's Hospital, Seattle, Washington.,Department of Pediatrics, University of Washington, Seattle, Washington.,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Min Xu
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington.,Department of Laboratories, Seattle Children's Hospital, Seattle, Washington
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14
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Aboughalia H, Chisholm KM, Iyer RS. Focal nodular hyperplasia masquerading as malignancy in an infant with elevated alpha-fetoprotein: A case report with literature review. Clin Imaging 2020; 69:228-232. [PMID: 32971452 DOI: 10.1016/j.clinimag.2020.08.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 08/17/2020] [Accepted: 08/24/2020] [Indexed: 01/30/2023]
Abstract
We describe a unique case of focal nodular hyperplasia (FNH) in a 6-month-old-girl with elevated alpha-fetoprotein (AFP). Given the patient's age and elevated AFP, a diagnosis of hepatoblastoma was presumed. However, the histopathologic assessment of the lesion was typical for focal nodular hyperplasia. This was further corroborated using hepatobiliary contrast agent to exclude the possibility of a collision or a composite liver tumor.
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Affiliation(s)
- Hassan Aboughalia
- Radiology Department, University of Washington Medical Center, Seattle, WA, United States of America.
| | - Karen M Chisholm
- Department of Laboratory Medicine, University of Washington, Seattle, WA, United States of America.
| | - Ramesh S Iyer
- Radiology Department, Seattle Children's Hospital, University of Washington School of Medicine, United States of America.
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15
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Chisholm KM, Fleming MD. Histologic and Laboratory Characteristics of Symptomatic and Asymptomatic Castleman Disease in the Pediatric Population. Am J Clin Pathol 2020; 153:821-832. [PMID: 32112075 DOI: 10.1093/ajcp/aqaa011] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVES Compare the morphologic, laboratory, and clinical features of asymptomatic and symptomatic Castleman disease in the pediatric population. METHODS We reviewed clinical records and histopathology of patients with Castleman disease from 2 pediatric institutions. RESULTS Of 39 patients with pediatric Castleman disease, 37 had unicentric disease, all classified with the hyaline vascular variant of Castleman disease, 8 of which were clinically symptomatic. These 8 patients demonstrated abnormal laboratory findings, including microcytic anemia, elevated erythrocyte sedimentation rate and C-reactive protein, and hypoalbuminemia. In addition, histopathologic evaluation showed that the 8 symptomatic cases had more hyperplastic germinal centers, fewer atrophic or regressed germinal centers, fewer mantle zones containing multiple germinal centers, reduced "onion skinning" of mantle zones, and fewer "lollipop" formations compared with the asymptomatic cases. CONCLUSIONS This series of pediatric Castleman disease showed that lymph nodes from asymptomatic patients generally demonstrated the more classic hyaline vascular histology, whereas those with symptoms could lack or have only focal classic findings. As such, reactive lymph nodes with subtle Castleman-like features should prompt clinical correlation to ensure proper diagnosis.
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Affiliation(s)
- Karen M Chisholm
- Department of Laboratories, Seattle Children’s Hospital, Seattle, WA
- Department of Laboratory Medicine, University of Washington, Seattle
| | - Mark D Fleming
- Department of Pathology, Boston Children’s Hospital, Boston, MA
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16
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Duncan VE, Chisholm KM, Pacheco MC. Effects of Tumor Necrosis Factor Alpha Inhibitors on Lymph Node and Ileocecal Mucosa-Associated Lymphoid Tissue Architecture in Patients With Inflammatory Bowel Disease. Pediatr Dev Pathol 2020; 23:115-120. [PMID: 31362580 DOI: 10.1177/1093526619866371] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
BACKGROUND Antitumor necrosis alpha (TNFα) therapy is often used in the management of patients with inflammatory bowel disease (IBD) and may have effects on lymphoid tissue architecture and function. The goal of our study was to characterize the effects of TNFα inhibitors on mesenteric lymph node and mucosa-associated lymphoid tissue in patients with IBD. METHODS We examined lymphoid tissue morphology in IBD patients treated with TNFα inhibitors compared to untreated controls. Intestinal resections from 19 patients (10 anti-TNFα treated and 9 controls) were reviewed. Immunohistochemistry for CD21, CD20, and CD3 was performed on ileocecal valve lymphoid tissue and mesenteric lymph nodes from the resection specimens to assess follicular architecture. RESULTS Relative to control groups, TNFα-treated groups showed less preserved germinal center architecture, evidenced by lower overall semiquantitative scores for follicular architecture. Likewise, the percentage of secondary follicles to total follicles was decreased in patients treated with TNFα blockade. CONCLUSIONS Our results suggest that TNFα inhibitors may play a role in disruption of lymphoid germinal center architecture in patients with IBD. Awareness of this disrupted lymphoid morphology when examining histologic sections from patients with IBD treated with TNFα inhibitors may prevent unnecessary studies to exclude a lymphoproliferative disorder.
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Affiliation(s)
- Virginia E Duncan
- Department of Pathology, University of Washington, Seattle, Washington.,Department of Laboratories, Seattle Children's Hospital, Seattle, Washington
| | - Karen M Chisholm
- Department of Laboratories, Seattle Children's Hospital, Seattle, Washington.,Department of Laboratory Medicine, University of Washington, Seattle, Washington
| | - M Cristina Pacheco
- Department of Pathology, University of Washington, Seattle, Washington.,Department of Laboratories, Seattle Children's Hospital, Seattle, Washington
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17
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Canalichio KL, Chisholm KM, Lendvay TS. Osseous Metaplasia in a Bladder Diverticulum in a Patient with Mosaic Menkes Disease. Urology 2019; 136:238-240. [PMID: 31758979 DOI: 10.1016/j.urology.2019.10.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 10/01/2019] [Accepted: 10/31/2019] [Indexed: 11/27/2022]
Abstract
Menkes disease, or Kinky Hair Syndrome, is a rare disorder of copper metabolism that causes fatal neurodegenerative disease in infancy. This X-linked disorder results from mutations in the ATP7A gene. Along with neurological decline, characteristic coarse appearance of the hair is seen. Urological issues are prevalent in this patient population, with bladder diverticula being the most common. Herein, we describe a unique male patient with genetic mosaicism and osseous metaplasia found in a ruptured bladder diverticulum.
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Affiliation(s)
- Katie L Canalichio
- Department of Pediatric Urology, Seattle Children's Hospital, Seattle, WA; Department of Urology, University of Washington, Seattle, WA.
| | - Karen M Chisholm
- Department of Laboratories, Seattle Children's Hospital, Seattle, WA; Department of Laboratory Medicine, University of Washington, Seattle, WA
| | - Thomas S Lendvay
- Department of Pediatric Urology, Seattle Children's Hospital, Seattle, WA; Department of Urology, University of Washington, Seattle, WA
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18
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Chisholm KM, Mohlman J, Liew M, Termuhlen A, Cairo MS, Gross TG, Perkins SL, Miles RR. IRF4 translocation status in pediatric follicular and diffuse large B-cell lymphoma patients enrolled in Children's Oncology Group trials. Pediatr Blood Cancer 2019; 66:e27770. [PMID: 31012208 PMCID: PMC6941672 DOI: 10.1002/pbc.27770] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 04/08/2019] [Accepted: 04/09/2019] [Indexed: 12/22/2022]
Abstract
Large B-cell lymphoma with IRF4 rearrangement is a provisional entity in the 2017 World Health Organization classification. In order to characterize these lymphomas in children from the United States, IRF4 FISH and immunohistochemical stains were performed on 32 follicular lymphoma and diffuse large B-cell lymphoma (DLBCL) from Children's Oncology Group studies. Two DLBCLs (6%) had IRF4 rearrangements, one involving the ileocecal valve and another involving the tonsil and cerebrospinal fluid. Both cases had strong, diffuse IRF4/MUM1 immunohistochemical staining, which may be a pathologic clue to the diagnosis. Reclassification of these cases may have prognostic and therapeutic implications.
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Affiliation(s)
- Karen M. Chisholm
- Department of Laboratories, Seattle Children’s Hospital, Seattle, WA, USA,Department of Laboratory Medicine, University of Washington, Seattle, WA, USA
| | - Jeffrey Mohlman
- Department of Pathology, University of Utah, Salt Lake City, UT, USA
| | - Michael Liew
- ARUP Institute for Clinical and Experimental Pathology, Salt Lake City, UT, USA
| | - Amanda Termuhlen
- Department of Pediatrics, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Mitchell S. Cairo
- Department of Pediatrics, Medicine, Pathology, Microbiology and Immunology and Cell Biology and Anatomy, New York Medical College, Valhalla, NY, USA
| | | | - Sherrie L. Perkins
- Department of Pathology, University of Utah, Salt Lake City, UT, USA,ARUP Institute for Clinical and Experimental Pathology, Salt Lake City, UT, USA
| | - Rodney R. Miles
- Department of Pathology, University of Utah, Salt Lake City, UT, USA,ARUP Institute for Clinical and Experimental Pathology, Salt Lake City, UT, USA
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19
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Chisholm KM, Denton C, Keel S, Geddis AE, Xu M, Appel BE, Cantor AB, Fleming MD, Shimamura A. Bone Marrow Morphology Associated With Germline RUNX1 Mutations in Patients With Familial Platelet Disorder With Associated Myeloid Malignancy. Pediatr Dev Pathol 2019; 22:315-328. [PMID: 30600763 DOI: 10.1177/1093526618822108] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Germline mutations in RUNX1 result in autosomal dominant familial platelet disorder with associated myeloid malignancy (FPDMM). To characterize the hematopathologic features associated with a germline RUNX1 mutation, we reviewed a total of 42 bone marrow aspirates from 14 FPDMM patients, including 24 cases with no cytogenetic clonal abnormalities, and 18 with clonal karyotypes or leukemia. We found that all aspirate smears had ≥10% atypical megakaryocytes, predominantly characterized by small forms with hypolobated and eccentric nuclei, and forms with high nuclear-to-cytoplasmic ratios. Core biopsies showed variable cellularity and variable numbers of megakaryocytes with similar features to those in the aspirates. Granulocytic and/or erythroid dysplasia (≥10% cells per lineage) were present infrequently. Megakaryocytes with separate nuclear lobes were increased in patients with myelodysplastic syndrome (MDS) and acute leukemia. Comparison to an immune thrombocytopenic purpura cohort confirms increased megakaryocytes with hypolobated eccentric nuclei in FPDMM patients. As such, patients with FPDMM often have atypical megakaryocytes with small hypolobated and eccentric nuclei even in the absence of clonal cytogenetic abnormalities; these findings are related to the underlying RUNX1 germline mutation and not diagnostic of MDS. Isolated megakaryocytic dysplasia in patients with unexplained thrombocytopenia should raise the possibility of an underlying germline RUNX1 mutation.
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Affiliation(s)
- Karen M Chisholm
- 1 Department of Laboratories, Seattle Children's Hospital, Seattle, Washington.,2 Department of Laboratory Medicine, University of Washington, Seattle, Washington.,3 Department of Pathology, Boston Children's Hospital, Boston, Massachusetts
| | - Christopher Denton
- 4 Department of Pediatrics, Seattle Children's Hospital, Seattle, Washington
| | - Sioban Keel
- 5 Division of Hematology, Department of Medicine, University of Washington, Seattle, Washington
| | - Amy E Geddis
- 6 Cancer and Blood Disorders Center, Seattle Children's Hospital, Seattle, Washington.,7 Division of Hematology & Oncology, Department of Pediatrics, University of Washington, Seattle, Washington
| | - Min Xu
- 1 Department of Laboratories, Seattle Children's Hospital, Seattle, Washington.,2 Department of Laboratory Medicine, University of Washington, Seattle, Washington
| | - Burton E Appel
- 8 Joseph M. Sanzari Children's Hospital, Hackensack University Medical Center, Children's Cancer Institute, Hackensack, New Jersey
| | - Alan B Cantor
- 9 Division of Hematology Oncology, Boston Children's Hospital, Boston, Massachusetts.,10 Department of Hematology Oncology, Dana Farber Cancer Institute, Boston, Massachusetts
| | - Mark D Fleming
- 3 Department of Pathology, Boston Children's Hospital, Boston, Massachusetts
| | - Akiko Shimamura
- 9 Division of Hematology Oncology, Boston Children's Hospital, Boston, Massachusetts.,10 Department of Hematology Oncology, Dana Farber Cancer Institute, Boston, Massachusetts
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20
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Abstract
Premature birth lacks a widely accepted classification that unites features of the clinical presentation with placental pathology. To further explore associations between the clinical categories of preterm birth and placental histology, 109 infants with gestational age <34 weeks and birth weight <2000 g were selected and, based on electronic records, were classified into preterm birth categories of preterm labor, prelabor premature rupture of membranes, preeclampsia, indicated preterm birth for maternal factors (other than preeclampsia), indicated preterm birth for fetal factors, and the clinical diagnosis of abruption. Corresponding placentas were analyzed for gross and microscopic variables, with findings grouped into categories of amniotic fluid infection, lymphocytic inflammation, maternal vascular malperfusion, and fetal vascular malperfusion. Placental features of maternal vascular malperfusion were pervasive in all preterm birth categories and were commonly associated with amniotic fluid infection and lymphocytic inflammation. Features of maternal vascular malperfusion were significantly associated with preterm birth due to preeclampsia, and amniotic fluid infection was highly associated with prelabor preterm rupture of membranes. Findings of lymphocytic inflammation were significantly increased in cases of abruption. Laminar decidual necrosis was present in all cases of abruption. Placentas from multiple gestations had significantly less histologic findings compared to singletons. Given that 75% of placentas demonstrated at least 1 feature of maternal vascular malperfusion despite different clinical presentations, seemingly different pathologies such as ascending amniotic fluid infection or lymphocytic inflammation may be mechanistically related to processes established early in pregnancy. The concept of "uterine ischemia" may be too simplistic to account for all of the changes attributed to maternal vascular malperfusion in the preterm placenta.
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Affiliation(s)
- Karen M Chisholm
- 1 Department of Pathology, Stanford University School of Medicine, Stanford, California
| | - Mary E Norton
- 2 Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Stanford University School of Medicine, Stanford, California
| | - Anna A Penn
- 3 Division of Neonatal and Developmental Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, California
| | - Amy Heerema-McKenney
- 1 Department of Pathology, Stanford University School of Medicine, Stanford, California
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21
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Sumarriva Lezama L, Chisholm KM, Carneal E, Nagy A, Cascio MJ, Yan J, Chang CC, Cherry A, George TI, Ohgami RS. An analysis of blastic plasmacytoid dendritic cell neoplasm with translocations involving the MYC locus identifies t(6;8)(p21;q24) as a recurrent cytogenetic abnormality. Histopathology 2018; 73:767-776. [PMID: 29884995 DOI: 10.1111/his.13668] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 06/06/2018] [Indexed: 12/12/2022]
Abstract
AIMS Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is an aggressive neoplasm with leukaemic features and frequent skin involvement. Translocations involving the MYC locus have been recently identified as recurrent cytogenetic abnormalities in this entity. The aim of this study was to assess the clinicopathological, immunophenotypic and genetic features in MYC-rearranged BPDCN cases. METHODS AND RESULTS Pathology archives from six major institutes were queried for cases of BPDCN with 8q24 MYC translocations, and two cases were identified. A literature review identified 14 cases. Clinicopathological features, immunophenotype and cytogenetic and molecular data were reviewed. In these 16 MYC-rearranged cases, the median age at diagnosis was 70.5 years, and there was a male predominance. Whereas all cases showed marrow involvement, skin lesions (62.5%) and lymphadenopathy (50%) were variably seen. The median survival was 11 months. The median percentage of blasts in peripheral blood was 9%. All cases showed expression of CD4, with 10 of 16 being positive for CD56. HLA-DR, CD123, TCL1 and CD303 were positive in all cases tested. Cytogenetic analysis revealed a single recurrent translocation partner of MYC at 6p21 in 11 cases (69%), whereas four cases showed different MYC translocation partners (2p12, Xq24, 3p25, and 14q32). Interestingly, the group of patients with t(6;8)(p21;q24) showed an older median age at diagnosis (74 years) and a remarkably shorter median survival (3 months). CONCLUSIONS Translocations involving the 8q24 MYC locus more frequently manifest as t(6;8)(p21;q24), and, given its association with specific clinicopathological features suggesting even more aggressive behaviour, t(6;8)(p21;q24) indicate a genetically defined subgroup within BPDCN.
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Affiliation(s)
| | - Karen M Chisholm
- Department of Laboratories, Seattle Children's Hospital, Seattle, WA, USA
| | - Eugene Carneal
- Department of Pathology, Stanford University Medical Center, Stanford, CA, USA
| | - Alexandra Nagy
- Department of Pathology, Stanford University Medical Center, Stanford, CA, USA
| | - Michael J Cascio
- Department of Pathology, Oregon Health and Science University, Portland, OR, USA
| | - Jie Yan
- Department of Pathology, University of New Mexico, Albuquerque, NM, USA
| | - Chung-Che Chang
- Department of Pathology, Florida Hospital, University of Central Florida, Orlando, FL, USA
| | - Athena Cherry
- Department of Pathology, Stanford University Medical Center, Stanford, CA, USA
| | - Tracy I George
- Department of Pathology, University of New Mexico, Albuquerque, NM, USA
| | - Robert S Ohgami
- Department of Pathology, Stanford University Medical Center, Stanford, CA, USA
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22
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Xu M, Chisholm KM, Fan G, Stevens AM, Rutledge JC. Hematoxylin Bodies in Pediatric Bone Marrow Aspirates and their Utility in the Diagnosis of Systemic Lupus Erythematosus. Pediatr Dev Pathol 2018; 21:300-307. [PMID: 28990859 DOI: 10.1177/1093526617734948] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In our recent case report, the finding of lupus erythematosus (LE) cells in a bone marrow aspirate led to the diagnosis of systemic lupus erythematosus (SLE) and appropriate treatment, although the patient was not clinically suspected to have SLE. To determine whether LE cells are present in the bone marrow aspirates of SLE patients, but overlooked in routine bone marrow morphology review, bone marrow aspirates from 30 pediatric patients (15 with SLE and 15 with other diagnoses) evaluated by rheumatologists were reviewed. LE cells were found in the bone marrow aspirates of only 1 SLE patient and none in non-SLE patients. However, hematoxylin bodies were identified in 53% (8/15) of SLE patients. Neither hematoxylin bodies nor LE cells were found in the aspirates from patients with other disorders. Three additional pediatric patients identified prospectively were found to have hematoxylin bodies in the bone marrow aspirates. Although the diagnosis was not initially suspected, 2 of the 3 patients were subsequently diagnosed with SLE. All patients with hematoxylin bodies and SLE had antinuclear antibody titers ≥1:640 with a homogeneous staining pattern. In addition, bone marrow aspirates of 9 adult patients were reviewed, and neither LE cells nor hematoxylin bodies were identified. In summary, hematoxylin bodies were present in the bone marrow aspirates of many pediatric SLE patients, while LE cells were rare. The finding of hematoxylin bodies in pediatric bone marrow aspirates is a helpful and specific diagnostic clue that may lead to the diagnosis of SLE when other clinical features are nonspecific.
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Affiliation(s)
- Min Xu
- 1 Department of Laboratories, Seattle Children's Hospital, Seattle, Washington.,2 Department of Laboratory Medicine, University of Washington, Seattle, Washington
| | - Karen M Chisholm
- 1 Department of Laboratories, Seattle Children's Hospital, Seattle, Washington.,2 Department of Laboratory Medicine, University of Washington, Seattle, Washington
| | - Guang Fan
- 3 Department of Pathology, Oregon Health Science University, Portland, Oregon
| | - Anne M Stevens
- 4 Division of Pediatric Rheumatology, Seattle Children's Hospital, Seattle, Washington.,5 Department of Pediatrics, University of Washington, Seattle, Washington.,6 Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, Washington
| | - Joe C Rutledge
- 1 Department of Laboratories, Seattle Children's Hospital, Seattle, Washington.,2 Department of Laboratory Medicine, University of Washington, Seattle, Washington
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23
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Chisholm KM, Xu M, Davis B, Ogi A, Pacheco MC, Geddis AE, Tsuchiya KD, Rutledge JC. Evaluation of the Utility of Bone Marrow Morphology and Ancillary Studies in Pediatric Patients Under Surveillance for Myelodysplastic Syndrome. Am J Clin Pathol 2018; 149:499-513. [PMID: 29659673 DOI: 10.1093/ajcp/aqy007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES To evaluate the utility of flow cytometry, karyotype, and a fluorescence in situ hybridization (FISH) panel in screening children for myelodysplastic syndrome (MDS). METHODS Bone marrow morphology, flow cytometry, karyotype, and FISH reports from 595 bone marrow specimens (246 patients) were analyzed. RESULTS By morphology, 8.7% of cases demonstrated at least unilineage dysplasia and/or increased blasts. Flow cytometry identified definitive abnormalities in 2.8% of cases, all of which had abnormal morphology. Of the 42 cases (7.2%) with acquired karyotypic abnormalities, 26 had no morphologic dysplasia. With a 98.2% concordance between karyotype and MDS FISH, FISH only identified two additional cases, both with low-level (<4%) abnormalities. Peripheral blood count evaluation only identified the absence of thrombocytopenia to correlate with an absence of abnormal ancillary tests. CONCLUSIONS The combination of morphologic evaluation and karyotype with judicious use of flow cytometry and MDS FISH is sufficient to detect abnormalities for these indications.
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Affiliation(s)
- Karen M Chisholm
- Department of Laboratories, Seattle, WA
- Department of Laboratory Medicine, University of Washington, Seattle
| | - Min Xu
- Department of Laboratories, Seattle, WA
- Department of Laboratory Medicine, University of Washington, Seattle
| | | | - Amy Ogi
- Department of Laboratories, Seattle, WA
| | - M Cristina Pacheco
- Department of Laboratories, Seattle, WA
- Department of Pathology, University of Washington, Seattle
| | - Amy E Geddis
- Laboratories Cancer and Blood Disorders Center, Seattle Children’s Hospital, Seattle, WA
- Division of Hematology and Oncology, Department of Pediatrics, University of Washington, Seattle
| | - Karen D Tsuchiya
- Department of Laboratories, Seattle, WA
- Department of Laboratory Medicine, University of Washington, Seattle
| | - Joe C Rutledge
- Department of Laboratories, Seattle, WA
- Department of Laboratory Medicine, University of Washington, Seattle
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24
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Gaal A, Chisholm KM, Egbert M. How Rare Is an Oral Presentation of Myeloid Sarcoma in the Infant? J Oral Maxillofac Surg 2018; 76:561-568. [DOI: 10.1016/j.joms.2017.08.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 08/26/2017] [Accepted: 08/26/2017] [Indexed: 10/18/2022]
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25
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Gillette TB, Cabrera MT, Tarlock K, Murphy CE, Chisholm KM, Stacey AW. Rapidly Progressive, Isolated Subretinal Leukemic Relapse: A Case Report. Ocul Oncol Pathol 2017; 4:220-224. [PMID: 30643765 DOI: 10.1159/000484054] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 10/05/2017] [Indexed: 11/19/2022] Open
Abstract
Purpose The aim of this paper is to describe a case of relapsed pediatric acute lymphoblastic leukemia (ALL) presenting as a rapidly progressive subretinal infiltrate, as diagnosed by ultrasound-guided fine needle aspiration (FNA). Methods We conducted a clinical pathological retrospective chart review. Results Eleven months after documented remission of T-cell ALL while on maintenance therapy, this 17-year-old patient presented with acute open angle glaucoma in the right eye. B-scan ultrasonography suggested total retinal detachment. Eight weeks later, based on routine cerebrospinal fluid analysis, the patient was diagnosed with central nervous system relapse of T-cell ALL. Repeat B-scan 1 week later showed a new hyperechoic subretinal mass. FNA of the mass confirmed leukemic infiltrate. The involved eye was enucleated, demonstrating leukemic cells throughout the subretinal space, choroid, and the optic nerve. Following hematopoietic stem cell transplant, the patient continues to maintain bone marrow remission 5 months after enucleation without involvement in the opposite eye. Conclusion Retinal detachment in any patient with a history of leukemia should raise the possibility of relapse and may warrant aspiration/biopsy if other means of diagnosing relapse are inconclusive. Subretinal infiltrate may progress rapidly and prompt diagnosis is paramount to tailoring therapy and preserving vision.
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Affiliation(s)
- Thomas B Gillette
- Clinical and Translational Research, Seattle Children's Hospital, University of Washington
| | | | - Katherine Tarlock
- Department of Hematology-Oncology, Seattle Children's Hospital, University of Washington, WA, USA
| | - Claire E Murphy
- Department of Laboratory Medicine, University of Washington, WA, USA
| | - Karen M Chisholm
- Department of Laboratory Medicine, University of Washington, WA, USA.,Department of Laboratories, Seattle Children's Hospital, Seattle, WA, USA
| | - Andrew W Stacey
- Department of Ophthalmology, University of Washington, WA, USA
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26
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Abstract
Deregulation of MYC oncoprotein in cancers can result from multiple oncogenic mechanisms. Although MYC translocations define Burkitt lymphoma and MYC protein expression is a poor prognostic factor in undifferentiated neuroblastomas, the distribution of MYC protein (c-MYC) across other pediatric small round blue cell tumors (SRBCT) has not been well characterized. We undertook this study to assess MYC protein expression in a large cohort of pediatric lymphomas, sarcomas, and other SRBCT. Tissue microarrays containing 302 SRBCT were successfully evaluated by immunohistochemistry using anti-MYC clone Y69, with nuclear positivity scored as 0%, 1%-25%, 26%-50%, 51%-75%, or 76%-100%. MYC protein staining of >50% of lesional cells was identified in 60% of Burkitt lymphomas, 50% of B lymphoblastic lymphomas, 33% of T lymphoblastic lymphomas, 31% of rhabdomyosarcomas, 33% of Ewing sarcomas, and 25% of soft tissue sarcomas, not otherwise specified. Only 14% of neuroblastomas showed >50% staining, and of these, if known, MYCN was not amplified. No cases of Wilms tumor, synovial sarcoma, or desmoplastic small round cell tumor had >50% staining. Recurrences and metastases often had the same percentage of MYC staining (15/30). In conclusion, MYC protein exhibited variable expression across and within pediatric SRBCT subtypes. Overall, these findings provide a baseline for MYC expression in pediatric SRBCT and suggest that there may be multiple mechanisms of MYC upregulation in these different neoplasms.
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Affiliation(s)
- Karen M Chisholm
- 1 Department of Pathology, Stanford University School of Medicine, Stanford, California, USA.,2 Now at Seattle Children's Hospital, Department of Laboratories, Seattle, Washington, USA
| | - Chandra Krishnan
- 3 Dell Children's Medical Center, Department of Pathology, Austin, Texas, USA
| | - Amy Heerema-McKenney
- 4 Pathology and Laboratory Medicine Institute, Cleveland Clinic Cleveland, Ohio, USA
| | - Yasodha Natkunam
- 1 Department of Pathology, Stanford University School of Medicine, Stanford, California, USA
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27
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Nosratian-Baskovic M, Tan B, Folkins A, Chisholm KM, Dorigo O. Hemophagocytic lymphohistiocytosis as a paraneoplastic syndrome associated with ovarian dysgerminoma. Gynecol Oncol Rep 2016; 17:38-41. [PMID: 27354999 PMCID: PMC4909829 DOI: 10.1016/j.gore.2016.05.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 05/25/2016] [Accepted: 05/30/2016] [Indexed: 12/03/2022] Open
Abstract
Ovarian dysgerminoma associated with paraneoplastic fever, cytopenia and splenomegaly Complete symptom resolution resulted from tumor resection and medical management Non-hematolymphoid neoplasms are part of differential diagnosis in secondary HLH.
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Affiliation(s)
- Mana Nosratian-Baskovic
- Stanford University, Department Obstetrics and Gynecology, Division of Gynecologic Oncology, Stanford, CA, United States
| | - Brent Tan
- Stanford University, Department Obstetrics and Gynecology, Division of Gynecologic Oncology, Stanford, CA, United States
| | - Ann Folkins
- Stanford University, Department of Pathology, Stanford, CA, United States
| | - Karen M Chisholm
- Stanford University, Department of Pathology, Stanford, CA, United States; Department of Laboratories, Seattle Children's Hospital, Department of Laboratories, Seattle, WA, United States
| | - Oliver Dorigo
- Stanford University, Department Obstetrics and Gynecology, Division of Gynecologic Oncology, Stanford, CA, United States
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28
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Abstract
Numerous conditions, including placental vascular compromise, can lead to small-for-gestational-age (SGA) infants. As few studies have investigated primarily term placentas from SGA infants, we compared placentas from 67 SGA infants to placentas from 67 infants with appropriate weights for gestational age (AGA) in this population, matched for gestational age and gender. Placental histology was reviewed and electronic records were queried for maternal and fetal birth data, infant morbidities, and infant follow-up weights. Comparison of these 2 cohorts showed that placentas from SGA infants were more likely to have smaller weights and thinner umbilical cords than those from AGA infants. SGA placentas had a significant increase in another uteroplacental malperfusion feature: single and multiple infarctions. Rates of preeclampsia, infant cardiac anomalies, and infant genetic abnormalities were not statistically different between groups. Fetal and maternal inflammatory responses, nongestational diabetes, and gestational hypertension were more common in the controls, but these are common indications for placental examination. No statistical differences were present for decidual vasculopathy, chronic villitis, intervillous thrombi, or meconium. More SGA neonates had hypoglycemia compared to their AGA counterparts. SGA infants tended to have decreased weights up to 7 months of age; however, the low number of infants with follow-up limited the statistical significance. This study confirms that small placental size and select features of uteroplacental malperfusion are more common in SGA versus AGA term placentas. The lack of other significant differences may be due to the inclusion of only term infants, with more severe pathology leading to preterm delivery.
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Affiliation(s)
- Karen M Chisholm
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Ann K Folkins
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
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29
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Hoffmann JC, Chisholm KM, Cherry A, Chen J, Arber DA, Natkunam Y, Warnke RA, Ohgami RS. An analysis of MYC and EBV in diffuse large B-cell lymphomas associated with angioimmunoblastic T-cell lymphoma and peripheral T-cell lymphoma not otherwise specified. Hum Pathol 2015; 48:9-17. [PMID: 26772393 DOI: 10.1016/j.humpath.2015.09.033] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2015] [Revised: 09/25/2015] [Accepted: 09/30/2015] [Indexed: 01/12/2023]
Abstract
Composite diffuse large B-cell lymphomas (DLBCLs) with peripheral T-cell lymphomas (PTCLs) are rare co-occurrences with poorly understood pathologic features. Herein, we describe 15 distinct cases of DLBCL occurring in association with PTCL, including angioimmunoblastic T-cell lymphoma (AITL; n = 12) and PTCL, not otherwise specified (n = 3). Sheets of large B cells were seen in all cases, with Hodgkin/Reed-Sternberg-like (HRS-L) cells present in 6 cases. When compared to cases of AITL without DLBCL, HRS-L cells were more frequently seen in cases of AITL with DLBCL (P = .02). Epstein-Barr virus (EBV) expression was seen in 10 of 15 cases, and in those with HRS-L cells, EBV expression was detected invariably in at least a subset of the HRS-L cells. MYC gene rearrangements were consistently absent, although 6 of the 10 cases showed MYC overexpression by immunohistochemistry in the neoplastic B cells; a frequency significantly increased compared to other cases of DLBCL not associated with a T-cell lymphoma: 29 of 166 (P = .005). In addition, when MYC was overexpressed in DLBCL, it was also weakly present in the HRS-L cells. The increased and frequent morphologic presence of HRS-L cells in association with this composite lymphoma raises a possible link between their occurrence and DLBCLs in PTCLs; furthermore, the frequent detection of MYC protein expression and EBV infection in these cases suggests a possible role of these pathways in B-cell lymphomagenesis.
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30
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Schulz S, Chisholm KM, Zhao H, Kalish F, Yang Y, Wong RJ, Stevenson DK. Heme oxygenase-1 confers protection and alters T-cell populations in a mouse model of neonatal intestinal inflammation. Pediatr Res 2015; 77:640-8. [PMID: 25665053 DOI: 10.1038/pr.2015.22] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2014] [Accepted: 10/29/2014] [Indexed: 12/27/2022]
Abstract
BACKGROUND Necrotizing enterocolitis (NEC), an intestinal inflammatory disease affecting premature infants, is associated with low regulatory T (Treg) to effector T (Teff) cell ratios. We recently demonstrated that heme oxygenase-1 (HO-1) deficiency leads to increased NEC development. Here, we investigated the effects of HO-1 on T-cell proportions in a murine NEC-like injury model. METHODS Intestinal injury was induced in 7-d-old wild-type (WT) or HO-1 heterozygous (HO-1 Het) pups by formula-feeding every 4 h for 24-78 h by oral gavage and exposures to 5%O2. Controls remained breastfed. HO-1 was induced in WT pups by administering heme preinjury induction. Lamina propria T cells were identified by flow cytometry. For adoptive transfer studies, WT splenic/thymic Tregs were injected intraperitoneally into HO-1 Het pups 12-24 h preinduction. RESULTS Het mice showed increased intestinal injury and decreased Treg/Teff ratios. Genes for pattern recognition (Toll-like receptor-4, C-reactive protein, MyD88) and neutrophil recruitment increased in Het pups after NEC induction. Inducing intestinal HO-1 decreased NEC scores and incidence, and increased Treg/Teff ratios. Moreover, adoptive transfer of Tregs from WT to HO-1 Het pups decreased NEC scores and incidence and restored Treg/Teff ratios. CONCLUSION HO-1 can change Treg proportions in the lamina propria of young mice under inflammatory conditions, which might, in part, confer intestinal protection.
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Affiliation(s)
- Stephanie Schulz
- 1] Department of Pediatrics, Stanford University School of Medicine, Stanford, California [2] Vlaams Instituut voor Biotechnologie Inflammation Research Center, Gent, Belgium [3] Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Karen M Chisholm
- Department of Pathology, Stanford University School of Medicine, Stanford, California
| | - Hui Zhao
- Department of Pediatrics, Stanford University School of Medicine, Stanford, California
| | - Flora Kalish
- Department of Pediatrics, Stanford University School of Medicine, Stanford, California
| | - Yang Yang
- Department of Genetics, Stanford University School of Medicine, Stanford, California
| | - Ronald J Wong
- Department of Pediatrics, Stanford University School of Medicine, Stanford, California
| | - David K Stevenson
- Department of Pediatrics, Stanford University School of Medicine, Stanford, California
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31
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Chisholm KM, Merker JD, Gotlib JR, Gitana G, Lefterova M, Zehnder JL, George TI, Arber DA, Ohgami RS. Mast cells in systemic mastocytosis have distinctly brighter CD45 expression by flow cytometry. Am J Clin Pathol 2015; 143:527-34. [PMID: 25780004 DOI: 10.1309/ajcpz3j4geeyirra] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
OBJECTIVES We sought to determine the significance of bright CD45 expression on mast cells in cases of systemic mastocytosis vs mast cells in bone marrows uninvolved by systemic mastocytosis and compare this CD45 expression with CD25 and CD2 expression on mast cells. METHODS Multiparameter flow cytometry was performed on 31 cases of systemic mastocytosis and 70 bone marrow cases that were not involved by systemic mastocytosis. Bright expression of CD45 was defined as more than 20% of CD117+ mast cells showing brighter CD45 expression than the average expression level of lymphocytes. RESULTS Mast cells with bright CD45 expression were seen in 26 systemic mastocytosis cases and three bone marrows uninvolved by systemic mastocytosis (sensitivity, 84%; specificity, 96%). CD25 alone had a greater sensitivity (100%) but lower specificity (93%) compared with bright CD45 for identifying abnormal mast cells, while CD2 alone had lower sensitivity but higher specificity. To reach a specificity of 100%, CD25 together with bright CD45 on mast cells was the optimal combination to detect cases of systemic mastocytosis. CONCLUSIONS A combination of bright CD45 and CD25 appears to specifically identify abnormal mast cells in cases of systemic mastocytosis. Further studies will be necessary to confirm these results.
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Affiliation(s)
- Karen M. Chisholm
- Department of Pathology, Stanford University School of Medicine, Stanford, CA
| | - Jason D. Merker
- Department of Pathology, Stanford University School of Medicine, Stanford, CA
| | - Jason R. Gotlib
- Department of Medicine, Stanford University School of Medicine, Stanford, CA
| | - Gary Gitana
- Department of Pathology, Stanford University School of Medicine, Stanford, CA
| | - Martina Lefterova
- Department of Pathology, Stanford University School of Medicine, Stanford, CA
| | - James L. Zehnder
- Department of Pathology, Stanford University School of Medicine, Stanford, CA
| | - Tracy I. George
- Department of Pathology, University of New Mexico School of Medicine, Albuquerque
| | - Daniel A. Arber
- Department of Pathology, Stanford University School of Medicine, Stanford, CA
| | - Robert S. Ohgami
- Department of Pathology, Stanford University School of Medicine, Stanford, CA
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32
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Chisholm KM, Rivetta CV, Heerema-McKenney A. PRAME immunohistochemical staining in transient abnormal myelopoiesis and myeloid leukemia associated with Down syndrome. Ann Clin Lab Sci 2015; 45:121-127. [PMID: 25887863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Transient abnormal myelopoiesis (TAM) and myeloid leukemia associated with Down syndrome (ML of DS) have morphologically indistinguishable blasts. TAM usually presents and regresses within the first three months of life. In a subset of patients, myelopoiesis remains abnormal, and the persistence of elevated blasts after 6 months is considered ML of DS. Current tools including cytogenetics and flow cytometry fail to distinguish blasts of TAM that will regress from blasts of ML of DS. One gene expression profiling study suggested PRAME expression was significantly increased in ML of DS compared to TAM. To further investigate this finding, we studied PRAME protein expression by immunohistochemistry in cases of TAM and ML of DS. PRAME immunoreactivity was found in blasts, dysplastic megakaryocytes, and fibroblasts. Four cases of TAM and fourteen cases of ML of DS had interpretable staining, with PRAME cytoplasmic reactivity in megakaryoblasts. Of the four cases of TAM, two were positive for PRAME; of the two patients, one had follow-up demonstrating ML of DS and the other had fully regressing TAM. Of the fourteen cases of ML of DS, ten had at least a subset of cells with positive PRAME staining, while four were negative for PRAME. In summary, PRAME immunoreactivity in ML of DS is largely due to the non-blast components, while PRAME immunoreactivity in blasts of TAM is not restricted to cases that progress to ML of DS.
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Affiliation(s)
- Karen M Chisholm
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Claudia V Rivetta
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Amy Heerema-McKenney
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
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33
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Chisholm KM, Aziz N, McDowell M, Guo FP, Srinivas N, Benitz WE, Norton ME, Gutierrez K, Folkins AK, Pinsky BA. Evaluation of serial urine viral cultures for the diagnosis of cytomegalovirus infection in neonates and infants. Pediatr Dev Pathol 2014; 17:176-80. [PMID: 24617645 DOI: 10.2350/14-01-1432-oa.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Cytomegalovirus (CMV) is the most common cause of congenital infection worldwide. Urine viral culture is the standard for CMV diagnosis in neonates and infants. The objectives of this study were to compare the performance of serial paired rapid shell vial cultures (SVC) and routine viral cultures (RVC), and to determine the optimal number of cultures needed to detect positive cases. From 2001 to 2011, all paired CMV SVC and RVC performed on neonates and infants less than 100 days of age were recorded. Testing episodes were defined as sets of cultures performed within 7 days of one another. A total of 1264 neonates and infants underwent 1478 testing episodes; 68 (5.4%) had at least one episode with a positive CMV culture. In episodes where CMV was detected before day 21 of life, the first specimen was positive in 100% (16/16) of cases. When testing occurred after 21 days of life, the first specimen was positive in 82.7% (43/52) of cases, requiring three cultures to reach 100% detection. The SVC was more prone to assay failure than RVC. Overall, when RVC was compared to SVC, there was 86.0% positive agreement and 99.9% negative agreement. In conclusion, three serial urine samples are necessary for detection of CMV in specimens collected between day of life 22 and 99, while one sample may be sufficient on or before day of life 21. Though SVC was more sensitive than RVC, the risk of SVC failure supports the use of multimodality testing to optimize detection.
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Affiliation(s)
- Karen M Chisholm
- 1 Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
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Ohgami RS, Chisholm KM, Ma L, Arber DA. E-cadherin is a specific marker for erythroid differentiation and has utility, in combination with CD117 and CD34, for enumerating myeloblasts in hematopoietic neoplasms. Am J Clin Pathol 2014; 141:656-64. [PMID: 24713736 DOI: 10.1309/ajcp8m4qqtazpgrp] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
OBJECTIVES E-cadherin, epithelial calcium-dependent cell adhesion protein, has been identified as a marker of immature erythroid precursors in recent years. However, the specificity of E-cadherin in bone marrow specimens for erythroblasts vs myeloblasts or other early hematopoietic precursors in acute myeloid leukemia (AML) and myelodysplastic syndromes (MDS) has not been fully elucidated. METHODS We analyzed 105 cases of AML and MDS to evaluate the specificity of E-cadherin. RESULTS Of 84 cases of AML, including cases with megakaryocytic, erythroid, monocytic, and granulocytic differentiation, all five acute erythroleukemia cases were positive, as well as one case of megakaryoblastic leukemia that showed coexpression of glycophorin A. In addition, we demonstrate that a panel of three markers, E-cadherin, CD117, and CD34, is effective in identifying lineage-specific myeloblasts in cases of MDS where left-shifted erythroid hyperplasia may complicate morphologic assessment of myeloblasts. CONCLUSIONS In marrow specimens, E-cadherin is a useful marker for erythroid differentation.
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Affiliation(s)
| | | | - Lisa Ma
- Stanford University Medical Center, Stanford CA
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Chisholm KM, Heerema-McKenney A. Erythroid nuclear irregularities: a review of fetal and neonatal autopsies and correlation with clinical features. Ann Clin Lab Sci 2014; 44:10-18. [PMID: 24695468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In our autopsy experience, abnormal erythroblast nuclear contours are frequently observed in the stillborn fetus or neonate without marrow failure disorders. Bone marrow and liver slides from autopsies of fetuses and infants less than six months of age were analyzed for the percent erythroblasts with nuclear irregularities, and correlated with gestational age at birth, days of life, cause of death, postmortem interval, presence of hydrops, and hematocrit at death. In total, 77 cases had sufficient marrow or liver erythroblasts for review, including 37 stillborns and 40 liveborns. Erythroid nuclear irregularities in >10% of erythroid precursors were present in either the liver or marrow in 54% of stillborns and 68% of liveborns, more commonly seen in the liver. Cases with <1% abnormal erythroblasts were rare. Fetuses with >10% abnormal erythroblasts in the liver were more likely to have died in utero, whereas those with less were more commonly terminations (p=0.008). No significant association between the extent of abnormal erythroblasts and the presence of anemia or hydrops was observed. While the finding of erythroblasts with nuclear irregularities is common in stillborns and liveborns and could be solely a postmortem artifact, we cannot exclude a potential fetal erythropoietic response to hypoxic stimuli. Dyspoietic-appearing erythroblasts alone should not be used as the basis for the diagnosis of a marrow failure disorder at autopsy.
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Affiliation(s)
- Karen M Chisholm
- Pathology and Laboratory Medicine Institute, Cleveland Clinic, 9500 Euclid Avenue, L21, Cleveland, OH 44195; phone: 216 444 5777; e mail:
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Chisholm KM, Getsinger D, Vaughan W, Hwang PH, Banaei N. Pretreatment of sinus aspirates with dithiothreitol improves yield of fungal cultures in patients with chronic sinusitis. Int Forum Allergy Rhinol 2013; 3:992-6. [PMID: 24124079 DOI: 10.1002/alr.21230] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Revised: 07/04/2013] [Accepted: 08/20/2013] [Indexed: 11/09/2022]
Abstract
BACKGROUND Mold pathogens are a leading cause of chronic rhinosinusitis. Successful isolation of mold on culture is helpful in establishing a diagnosis and guiding therapy. Though mucolytic agents are commonly used in European countries, they are not part of everyday use in North America. In this case-control prospective study, we investigated the yield of fungal culture before and after treatment of sinus aspirates with the mucolytic agent dithiothreitol in a United States hospital. METHODS Over a 5-month period during 2011-2012, 359 sinus aspirates from 294 patients with symptoms suspicious for chronic sinusitis or allergic fungal sinusitis were collected. Aspirates were cultured on fungal medium before and after treatment with dithiothreitol. RESULTS Of the 359 pairs of cultures, 62 (17.3%) demonstrated mold growth on at least 1 of the plates, 9 (14.5%) of which grew more than 1 species of mold. A total of 75 molds were identified, 41 (54.7%) of which were successfully cultured only when the mucus was pretreated with dithiothreitol (p < 0.0001). Quantitatively, more colonies grew from dithiothreitol-treated mucus than from direct-inoculation (p < 0.0001). CONCLUSION This study confirms improved recovery of mold from sinus cultures after pretreatment of samples with dithiothreitol. Further studies are needed to correlate these findings with clinical outcome.
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Affiliation(s)
- Karen M Chisholm
- Department of Pathology, Stanford University School of Medicine, Stanford, CA
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Schulz S, Wong RJ, Jang KY, Kalish F, Chisholm KM, Zhao H, Vreman HJ, Sylvester KG, Stevenson DK. Heme oxygenase-1 deficiency promotes the development of necrotizing enterocolitis-like intestinal injury in a newborn mouse model. Am J Physiol Gastrointest Liver Physiol 2013; 304:G991-G1001. [PMID: 23578787 PMCID: PMC3680684 DOI: 10.1152/ajpgi.00363.2012] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2012] [Accepted: 04/09/2013] [Indexed: 01/31/2023]
Abstract
Necrotizing enterocolitis (NEC) is typified by mucosal destruction, which subsequently can lead to intestinal necrosis. Prematurity, enteral feeding, and bacterial colonization are the main risk factors and, combined with other stressors, can cause increased intestinal permeability, injury, and an exaggerated inflammatory response. Heme oxygenase-1 (HO-1) mediates intestinal protection due to anti-inflammatory, antioxidative, and antiapoptotic effects of its products carbon monoxide, biliverdin, and bilirubin. This study investigates a possible role of HO-1 in the pathogenesis of NEC using a newborn mouse model. We induced NEC-like intestinal injury in 7-day-old HO-1 heterozygous (HO-1 Het, Hmox1(+/-)) and wild-type (Wt, Hmox1(+/+)) mice by gavage feeding and hypoxic exposures. Control (Con) pups of both genotypes were dam-fed. Intestines of HO-1 Het Con pups appeared predisposed to injury, with higher histological damage scores, more TUNEL-positive cells, and a significant reduction in muscularis externa thickness compared with Wt Con pups. The increase in HO activity after HO-1 induction by the substrate heme or by hypoxic stress was significantly impaired in HO-1 Het pups. After induction of intestinal injury, HO-1 Het pups displayed significantly higher NEC incidence (78 vs. 43%), mortality (83 vs. 54%), and median scores (2.5 vs. 1.5) than Wt NEC pups. PCR array analyses revealed increased expressions of IL-1β, P-selectin, matrix metallopeptidase 2, collagen type XVIII-α1, serpine 1, and others in NEC-induced HO-1 Het ileal and jejunal tissues. We conclude that a partial HO-1 deficiency promotes experimental NEC-like intestinal injury, possibly mediated by exaggerated inflammation and disruption in tissue repair.
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Affiliation(s)
- Stephanie Schulz
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA 94305, USA
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Abstract
Propranolol has recently emerged as an effective therapy for infantile hemangiomas causing regression. The β-adrenergic receptor (AR) antagonist is thought to cause vasoconstriction by its effect on nitric oxide, block angiogenesis by its effect on vascular endothelial growth factor (VEGF), and induce apoptosis. In a prior report, we identified expression of β2-AR (B2-AR) and its phosphorylated form (B2-ARP) in a case of infantile hemangioma that responded to propranolol treatment. We now explore the expression of βARs on a variety of vascular lesions utilizing a tissue microarray containing 141 lesions, including infantile hemangiomas, angiosarcomas, hemangiomas, hemangioendotheliomas, and various vascular malformations. The array was immunostained for B2-AR, B2-ARP, and β3-AR (B3-AR), and the results scored for the intensity of endothelial cell expression as negative, weak positive, or strong positive. All phases of infantile hemangiomas had strong expression of all three receptors, with the exception of only weak expression of B2-ARP in the proliferative phase infantile hemangioma. Strong expression of all three receptors was present in many hemangiomas, hemangioendotheliomas, and vascular malformations. Absent to weak expression of all three receptors was seen in glomus tumor, hobnail hemangioendothelioma, pyogenic granuloma, and reactive vascular proliferations. This is the first study to report β-AR expression in a variety of vascular lesions. Although immunohistochemical expression of the receptors does not necessarily indicate that similar pathways of responsiveness to β-blockade are present, it does raises the possibility that β-blockade could potentially affect apoptosis and decrease responsiveness to VEGF. Additional study is warranted, as therapeutic options are limited for some patients with these lesions.
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Affiliation(s)
- Karen M Chisholm
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
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Chisholm KM, Wan Y, Li R, Montgomery KD, Chang HY, West RB. Detection of long non-coding RNA in archival tissue: correlation with polycomb protein expression in primary and metastatic breast carcinoma. PLoS One 2012; 7:e47998. [PMID: 23133536 PMCID: PMC3485022 DOI: 10.1371/journal.pone.0047998] [Citation(s) in RCA: 116] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2012] [Accepted: 09/25/2012] [Indexed: 11/18/2022] Open
Abstract
A major function of long non-coding RNAs (lncRNAs) is regulating gene expression through changes in chromatin state. Experimental evidence suggests that in cancer, they can influence Polycomb Repressive Complexes (PRC) to retarget to an occupancy pattern resembling that of the embryonic state. We have previously demonstrated that the expression level of lncRNA in the HOX locus, including HOTAIR, is a predictor of breast cancer metastasis. In this current project, RNA in situ hybridization of probes to three different lncRNAs (HOTAIR, ncHoxA1, and ncHoxD4), as well a immunohistochemical staining of EZH2, is undertaken in formalin-fixed paraffin-embedded breast cancer tissues in a high throughput tissue microarray format to correlate expression with clinicopathologic features. Though overall EZH2 and HOTAIR expression levels were highly correlated, the subset of cases with strong HOTAIR expression correlated with ER and PR positivity, while the subset of cases with strong EZH2 expression correlated with an increased proliferation rate, ER and PR negativity, HER2 underexpression, and triple negativity. Co-expression of HOTAIR and EZH2 trended with a worse outcome. In matched primary and metastatic cancers, both HOTAIR and EZH2 had increased expression in the metastatic carcinomas. This is the first study to show that RNA in situ hybridization of formalin fixed paraffin-embedded clinical material can be used to measure levels of long non-coding RNAs. This approach offers a method to make observations on lncRNAs that may influence the cancer epigenome in a tissue-based technique.
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Affiliation(s)
- Karen M. Chisholm
- Department of Pathology, Stanford University School of Medicine, Stanford, California, United States of America
| | - Yue Wan
- Howard Hughes Medical Institute and Program in Epithelial Biology, Stanford University School of Medicine, Stanford, California, United States of America
| | - Rui Li
- Department of Pathology, Stanford University School of Medicine, Stanford, California, United States of America
| | - Kelli D. Montgomery
- Department of Pathology, Stanford University School of Medicine, Stanford, California, United States of America
| | - Howard Y. Chang
- Howard Hughes Medical Institute and Program in Epithelial Biology, Stanford University School of Medicine, Stanford, California, United States of America
| | - Robert B. West
- Department of Pathology, Stanford University School of Medicine, Stanford, California, United States of America
- * E-mail:
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Affiliation(s)
- Michael J J Kim
- Departments of Radiology, Stanford University Medical Center, Stanford, CA 94304, USA
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Chisholm KM, Aubert SD, Freese KP, Zakian VA, King MC, Welcsh PL. A genomewide screen for suppressors of Alu-mediated rearrangements reveals a role for PIF1. PLoS One 2012; 7:e30748. [PMID: 22347400 PMCID: PMC3276492 DOI: 10.1371/journal.pone.0030748] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2011] [Accepted: 12/23/2011] [Indexed: 11/18/2022] Open
Abstract
Alu-mediated rearrangement of tumor suppressor genes occurs frequently during carcinogenesis. In breast cancer, this mechanism contributes to loss of the wild-type BRCA1 allele in inherited disease and to loss of heterozygosity in sporadic cancer. To identify genes required for suppression of Alu-mediated recombination we performed a genomewide screen of a collection of 4672 yeast gene deletion mutants using a direct repeat recombination assay. The primary screen and subsequent analysis identified 12 candidate genes including TSA, ELG1, and RRM3, which are known to play a significant role in maintaining genomic stability. Genetic analysis of the corresponding human homologs was performed in sporadic breast tumors and in inherited BRCA1-associated carcinomas. Sequencing of these genes in high risk breast cancer families revealed a potential role for the helicase PIF1 in cancer predisposition. PIF1 variant L319P was identified in three breast cancer families; importantly, this variant, which is predicted to be functionally damaging, was not identified in a large series of controls nor has it been reported in either dbSNP or the 1000 Genomes Project. In Schizosaccharomyces pombe, Pfh1 is required to maintain both mitochondrial and nuclear genomic integrity. Functional studies in yeast of human PIF1 L319P revealed that this variant cannot complement the essential functions of Pfh1 in either the nucleus or mitochondria. Our results provide a global view of nonessential genes involved in suppressing Alu-mediated recombination and implicate variation in PIF1 in breast cancer predisposition.
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Affiliation(s)
- Karen M Chisholm
- Department of Genome Sciences, University of Washington, Seattle, Washington, United States of America
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Murphy JD, Chisholm KM, Daly ME, Wiegner EA, Truong D, Iagaru A, Maxim PG, Loo BW, Graves EE, Kaplan MJ, Kong C, Le QT. Correlation between metabolic tumor volume and pathologic tumor volume in squamous cell carcinoma of the oral cavity. Radiother Oncol 2011; 101:356-61. [PMID: 21665308 DOI: 10.1016/j.radonc.2011.05.040] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2011] [Revised: 04/12/2011] [Accepted: 05/18/2011] [Indexed: 10/18/2022]
Abstract
PURPOSE To explore the relationship between pathologic tumor volume and volume estimated from different tumor segmentation techniques on (18)F-fluorodeoxyglucose (FDG) positron emission tomography (PET) in oral cavity cancer. MATERIALS AND METHODS Twenty-three patients with squamous cell carcinoma of the oral tongue had PET-CT scans before definitive surgery. Pathologic tumor volume was estimated from surgical specimens. Metabolic tumor volume (MTV) was defined from PET-CT scans as the volume of tumor above a given SUV threshold. Multiple SUV thresholds were explored including absolute SUV thresholds, relative SUV thresholds, and gradient-based techniques. RESULTS Multiple MTV's were associated with pathologic tumor volume; however the correlation was poor (R(2) range 0.29-0.58). The ideal SUV threshold, defined as the SUV that generates an MTV equal to pathologic tumor volume, was independently associated with maximum SUV (p=0.0005) and tumor grade (p=0.024). MTV defined as a function of maximum SUV and tumor grade improved the prediction of pathologic tumor volume (R(2)=0.63). CONCLUSIONS Common SUV thresholds fail to predict pathologic tumor volume in head and neck cancer. The optimal technique that allows for integration of PET-CT with radiation treatment planning remains to be defined. Future investigation should incorporate biomarkers such as tumor grade into definitions of MTV.
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Affiliation(s)
- James D Murphy
- Department of Radiation Oncology, Stanford University School of Medicine, United States
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Pierce SB, Walsh T, Chisholm KM, Lee MK, Thornton AM, Fiumara A, Opitz JM, Levy-Lahad E, Klevit RE, King MC. Mutations in the DBP-deficiency protein HSD17B4 cause ovarian dysgenesis, hearing loss, and ataxia of Perrault Syndrome. Am J Hum Genet 2010; 87:282-8. [PMID: 20673864 DOI: 10.1016/j.ajhg.2010.07.007] [Citation(s) in RCA: 177] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2010] [Revised: 07/14/2010] [Accepted: 07/15/2010] [Indexed: 02/09/2023] Open
Abstract
Perrault syndrome is a recessive disorder characterized by ovarian dysgenesis in females, sensorineural deafness in both males and females, and in some patients, neurological manifestations. No genes for Perrault syndrome have heretofore been identified. A small family of mixed European ancestry includes two sisters with well-characterized Perrault syndrome. Whole-exome sequencing of genomic DNA from one of these sisters revealed exactly one gene with two rare functional variants: HSD17B4, which encodes 17beta-hydroxysteroid dehydrogenase type 4 (HSD17B4), also known as D-bifunctional protein (DBP). HSD17B4/DBP is a multifunctional peroxisomal enzyme involved in fatty acid beta-oxidation and steroid metabolism. Both sisters are compound heterozygotes for HSD17B4 c.650A>G (p.Y217C) (maternal allele) and HSB17B4 c.1704T>A (p.Y568X) (paternal allele). The missense mutation is predicted by structural analysis to destabilize the HSD17B4 dehydrogenase domain. The nonsense mutation leads to very low levels of HSD17B4 transcript. Expression of mutant HSD17B4 protein in a compound heterozygote was severely reduced. Mutations in HSD17B4 are known to cause DBP deficiency, an autosomal-recessive disorder of peroxisomal fatty acid beta-oxidation that is generally fatal within the first two years of life. No females with DBP deficiency surviving past puberty have been reported, and ovarian dysgenesis has not previously been associated with this illness. Six other families with Perrault syndrome have wild-type sequences of HSD17B4. These results indicate that Perrault syndrome and DBP deficiency overlap clinically; that Perrault syndrome is genetically heterogeneous; that DBP deficiency may be underdiagnosed; and that whole-exome sequencing can reveal critical genes in small, nonconsanguineous families.
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Chisholm KM, Goff BA, Garcia R, King MC, Swisher EM. Genomic structure of chromosome 17 deletions in BRCA1-associated ovarian cancers. ACTA ACUST UNITED AC 2008; 183:41-8. [PMID: 18474296 DOI: 10.1016/j.cancergencyto.2008.02.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2007] [Revised: 02/02/2008] [Accepted: 02/06/2008] [Indexed: 01/01/2023]
Abstract
The aim of this study was to determine the genomic structure of the deletions on chromosome 17 in ovarian carcinomas from women with inherited BRCA1 mutations. Normal and tumor DNA from 14 ovarian tumors associated with inherited BRCA1 mutations were extracted and tested for loss of heterozygosity (LOH) at microsatellite markers along chromosome 17. Finer mapping using more microsatellite markers and single nucleotide polymorphisms helped further define the LOH margins. The genomic repeated elements within the LOH breakpoint regions were identified using the University of California Santa Cruz Genome Database, and the frequencies were compared to regions of equal GC percentages across the genome. Of the 14 ovarian tumors, 12 showed LOH of the entire chromosome 17. The other two tumors lost the distal end of the 17q arm. The breakpoints of these two tumors occurred in regions with significantly high frequencies of short interspersed nuclear elements (SINE), specifically Alu elements. Ovarian tumors of high grade and stage have large regions of LOH along chromosome 17, with most tumors showing loss of the entire chromosome. In those tumors with retention of part of chromosome 17, LOH margins suggest that a high Alu content may have a role in the deletions.
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Affiliation(s)
- Karen M Chisholm
- Department of Genome Sciences, University of Washington, 1959 NE Pacific St., Seattle, WA 98195, USA
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Seligman LM, Chisholm KM, Chevalier BS, Chadsey MS, Edwards ST, Savage JH, Veillet AL. Mutations altering the cleavage specificity of a homing endonuclease. Nucleic Acids Res 2002; 30:3870-9. [PMID: 12202772 PMCID: PMC137417 DOI: 10.1093/nar/gkf495] [Citation(s) in RCA: 83] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The homing endonuclease I-CreI recognizes and cleaves a particular 22 bp DNA sequence. The crystal structure of I-CreI bound to homing site DNA has previously been determined, leading to a number of predictions about specific protein-DNA contacts. We test these predictions by analyzing a set of endonuclease mutants and a complementary set of homing site mutants. We find evidence that all structurally predicted I-CreI/DNA contacts contribute to DNA recognition and show that these contacts differ greatly in terms of their relative importance. We also describe the isolation of a collection of altered specificity I-CreI derivatives. The in vitro DNA-binding and cleavage properties of two such endonucleases demonstrate that our genetic approach is effective in identifying homing endonucleases that recognize and cleave novel target sequences.
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Affiliation(s)
- Lenny M Seligman
- Department of Biology and Program in Molecular Biology, Pomona College, 609 North College Avenue, Claremont, CA 91711, USA.
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